Mortar-making machine.



No. 874,252. PATENTED mac. 17, 1907.

P. SGHWIETE; MORTAR MAKING MACHINE.

APPLIUATION FILED AER. 25119 06.

2 SHEET8'BKEBT -1 I F 15 f 1 0L F I 1 5 16 15 '5: ,W I I I 16 'l] I u I B l6 A I 5' A EIg., .L 5

WITNESSES" Fe/Pr Jcfiw/eie 09 6 INVENTOR.

ATTORNEY.

' P ATENTED DEC. 17, 1907.

P. SGHWIETE.

MORTAR MAKING'MAGHINE.

APPLICATION FILED APR-25.1906.

2 SHEETS-SHEET 2.

WI TNESSE- KTT-TORNEY.

PETER SOHWIETE, OF ST. LOUIS, MISSOURI.

MORTAR-MAKING MACHINE.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed April 25.19%- Sei'ial lio- 813.686.

To all who-m it may concern:

Bo it known that I, PETER Sonwmrs, a citizen of the United States, residing at St. Louis, St e of Missouri, have invented "certain new and useful Improvements in Mortar-Making Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

My invention has relation to improvements in mortar making machines and consists in the novel details of construction more fully set forth in the specification and pointed out in the claims.

, In the drawings,.Figure 1 is a top plan of my machine; Fig. 2 is a vertical section on the line 22 of Fig. 1; Fig. 3 is a ers c tive of the blades or shovels and the nt plates supporting the sameg" Fig. 4 is a cross section of the front blade or butter on the line 44 of Fig. 3; and Fig. 5 is across section on the line 55 of Fig. 2 takeh through the door leading to the dump-chute.

The object of my invention is to construct a machine which will mechanically the constituents entering into the compositionof any given species of mortar tor cement) special importance being attached to the specific disposition and construction of the bade-s or s ovols by which the ingredients are churned,- and mixed together. I

A. further object is to produce a machine Whiehfor. a given number and'size 'of blades will possess a maximum eiiiciency.

. In detail the invention may be as'follows: I

Refenin to the drawin s, 1 is an annular trough or oi: inwhich t e' ingredients are laced and in which the mixing takes place. isposed at the centerof the concentric one s defining the inner and outer-Walls of the trough is-a post 2' extending to a height described slightly above the plane corresponding to trough, said frame be a central he the height of the trough, the upper end of the post serving as a bearing for the rotatable horizontal frame F superposed above the "provided at intervals with rollers 3 t'rave ing along the up er edge of the outer wall of the trough. he frame composed of an outer circular rim,

and intermediate bracing as shown, thou I attach no importance to the details 6 its construction, as the same may be built in any mechanical manner, all depending on the discretion of the builder.

not ,by the vertical shaft or spind e of a large' Rotation is imparted to the frame by 'means of a drivin sprocket chem 4' assing respectively a out the periphery o the frame and about a pulley 5 mounted to revolve horizontally in a standard or brackets, the chain being held in contact with the frame peripihery by any suitable mechanical means erem claimed. The pulle 5 is carried bevel gear wheel 6 mounted in the standard S, the teeth whereof mesh with a bevel pinion 7- at the inner end of the main driveshaft 8 also mounted in the standard S, the shaft being provided with a belt pulley 9 over vwhi c passes a belt (not shown) to any suitable, source of power (not shown).-

.The standard S is provided with terminal parallel arms a a between which is disposed 'a curved track 10 for the support of the adjustable bearing of an idler ulley. or belt Ptightener 11, the mechanical etails of these ieaturesbeing immaterial since they are a well understood in' the art, and the parts are only conventionally shown herein.

The efficiency of the present machine-is due to the specific construction and .disposition of the blades or shovels whose construction I shall now describe: The several blades are res ectively secured to 'a front plate 12 of substantially V-shaped design,. and to a bent plate 13- also V-shaped, the legs. of the respective plates being substantially parallel to one another. Both lates are prgovided at convenient points wlth sorew-,

its 14, by which they can be suspended 1 from the frame into the trough, suitable nuts 15 retaining them in position. Suitable members, plates, or braces enter into the construction of the frame F as shown which will receive the bolts 14, and it is of no s ecial consequence how the frame F shall be uilt, as long as it is stiff, and light. With the exception of the first blade or cutter B, which is virtually fastened at the a ex of the plate 12,

and rejects a considerab e distance in front of tile plate, the remaining blades or followers B are secured in position in the space between the plates 12 and 13, and referably b means of angle-brackets 1 6 istribu'ted W cm most needed. I do not however lay any stress on this or any other mode of has tonin the blades, the important feature being t eir form and relative specific dis osition. The front blade B of each series (t ere being two series located at opposite ends of what the the diameter of the frame F) has a bottom rotting edge e and :earwardly deflected wings l1. and as a blade, is inclined to the horizontal that is to say, it dips downwardly from the plate 12 to thebottoni of the trough, the lower edge of said plate '12 being refrom the gearing referred to. The Llll'UIl ion of rotation of course is as indicated by the curved arrow in Fig. 1. \V-hen a batch of .i'n'aterial is mixed, the door 17 is allowed to drop to open position (dotted lines Fig. 5), allowingt 1e mortar to run through the rhule moved a suitable distance above said bottoanyl'ioint ofConsumption. tom. The mortarnuxture is thus cut by the llaving described my invention, what 1 blade from the bottom of the trough, then claim is:

1. In a mortar i'naking machine, the combination of a suitable annular trough, with a 1' frame rotatable above the same, blades colineoted to and depending from the frame into the trough, and disposed in two sets converging toward a point between the vertical carried upward along the blade, when, oncountering the diverging walls of the plate 12 the lTllXtLlIO is deflected inltwardly after which, in dropping back to its lowest osition and into the path of the follower blades B, it is seized by theadvancing gdges of said blades, the i-naterial being forced to bounding walls of the trough, and a cutter climb the 'xertieal walls of said blades set in blade located in advance of the angle of conadjacent relation to one another, the climb" vergence of the sets of blades aforesaid, subing of the material resulting in turningit stantially as set forth.

over or imparting thereto revolving move- 2. In a mortar making machine, the com ment so that all the ingredients thereof bebinationpf an annular trough, with a rotatacome thoroughly intermixed. The blades B, 'ble frame superposed above the same, blades like the blade B- of course extend below the connected to and depending from the frame lower edge of the plate 12, and like the blade into the trough and disposed in sets converg- B, they are provided with a cutting edge e in along two sides of a triangle whose third which constitutes the front edge of the liorisi e isdis'posed substantially along the radius zontal wing to or leg of the blade, said horiof the rotatable frame, and a cutter blade in zonta-l wing gradually turning and merging advance of the angleofoonvergen-oe of the with the vertical wing (1 whose u per hOIZlf sets of blades aforesaid, substantially as set forth.

- 3. In a mortar making machine, the com bination of an annular trough, with a rotata- 'blel frame superposed above the same, blades connected to and depending from the zontal edge follows an. outward'y convex curve, or away from the a ex of the plate, as best shown inFig. 1 of t 1e drawings. The contiguity of the blades B results in the formation of a series of open ended passages for the travel of the mixture, the material being into the trough thoroughly churned and mixed in these pas-' ing along two sides 0 an isosceles triang sages. The blades B may be said to be dis- 1 whose third side lies across the width of the posed relatively to one another along what I trough, and a downwardly incline-d blade in maybe considered the equal sides of an isos- I dependent of the converging sets located at celes triangle, the legs of the plate 12 being and projectinga suitable distance in front of substantiallx equal. They maybe consid the angle of the converging sets, su'bstan; ered too, as disposed inconverging sets, the .tially' asset. forth. cutting blade'or scraper B beingiocated at In a mortar making the point of convergence, or'angle o posite bination of tothe' third side of the triangle,,whic itself ble frame superposedabove the same, a V- is disposed along the radius of the rotatable I shaped apron carried by the frame the legs of ame F. i r l t e apron extending from the inner and The mixture being once thoroughly ef outer walls of thetrough and meeting, at a fected, it is allowed to pass into a dum oint or apex intermediate the said walls, a chute C whence it is conveyed to anysu1t- Elade connected to and projecting from the able point of consumption. The opening 0 apron in front of the apex thereof, and blades at the bottom of the trough leading to the disposed behind each leg of the apron, subchute C is normally kept; closed by a hinged Y stantiaily as set forth. a

' 5. Ina mortar making machine, the comdoor 17 swinging downward when released. It is kept normally closed by the ar1ns 1.8 at .bination of an annular trough, with a rotataopposite ends of a rocl -shaft 19 nionnted= ;blel1-a111e superposed above th ad acent to the opening 0, and havinga tershaped apron carried by the frame, the legs minal lever 20 by which the shaft may beof the apron beingsubstantially equal in rocked'to looking or elcasing position. N oil. length and spanning'the space between the i as it is quite inner and outer Walls of the trou h, the apex of the legs meeting at the. medial line of the machine, the comclaim .isinade to this detail material how the dooris locked or opened, or,

.i character of the dooif i trough, vazcul'lting blade connected to the may be. m Ia non andprojectingf'infront of-the apex Rotation im a zeih'tu the'shal't 8, tavern; t ereof and having a 'cuttng edge bearing l against the bottom of the trough blades or municated to t is frame F as elearly obvious an annulartrough, with a rotata-' frame and d1iposed 1n sets converg-' followers disposed behind each leg of the apron and having-horizontal wings or members provided .with'frorlt cutting ed es, and

y with upwardly defleted or vertica wings convexed from the apex of the apron, whereby thea re io-formeda curved 0 en ended passage-way between each pair 0 followers and the material operated on is subjected to a; turmng or revolvmg mot'nqn and the ingrodients vthoroughly mixed, 'rubstantially as s forth.

Signed .at the city of St. Louis State oi Missouri this 18th day of AprilA. 199d PETER soHWIETE? Witnsses: v

LEWIS G. FRY; MARK MINZEY. 

